package com.zzyl.nursing.service.impl;

import cn.hutool.core.util.ObjectUtil;
import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSON;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.zzyl.common.utils.http.HttpUtils;
import com.zzyl.nursing.service.WechatService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

@Service

public class WechatServiceImpl implements WechatService {

    //登录
    private static final String REQUEST_URL = "https://api.weixin.qq.com/sns/jscode2session?grant_type=authorization_code";
    //获取token
    private static final String TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
    //获取手机号
    private static final String PHONE_URL = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=";
    @Value("${wechat.appid}")
    private String appid;

    @Value("${wechat.secret}")
    private String secret;


    @Override
    public String getOpenid(String code) {
        // 获取公共参数
        Map<String, Object> map = getAppConfig();
        map.put("js_code", code);

        String result = HttpUtil.get(REQUEST_URL, map);
        // 结果是一个map
        JSONObject jsonObject = JSONUtil.parseObj(result);
        // 判断接口响应是否出错
        if (ObjectUtil.isNotEmpty(jsonObject.getInt("errcode"))) {
            throw new RuntimeException(jsonObject.getStr("errmsg"));
        }

        String openid = jsonObject.getStr("openid");

        return openid;
    }

    //封装公共参数
    private Map<String, Object> getAppConfig() {
        Map<String, Object> map = new HashMap<>();
        map.put("appid", appid);
        map.put("secret", secret);
        return map;
    }

    @Override
    public String getPhone(String detailCode) {
        String token = getToken();
        String url = PHONE_URL + token;
        HashMap<String, Object> map = new HashMap<>();
        map.put("code", detailCode);
        // 发送请求
        String result = HttpUtil.post(url, JSONUtil.toJsonStr(map));

        JSONObject jsonObject = JSONUtil.parseObj(result);
        // 判断接口响应是否出错
        if(jsonObject.getInt("errcode") != 0) {
            throw new RuntimeException(jsonObject.getStr("errmsg"));
        }

        return jsonObject.getJSONObject("phone_info").getStr("phoneNumber");
    }

    /**
     * 获取token
     *
     * @return
     */
    private String getToken() {
        Map<String, Object> map = getAppConfig();
        map.put("grant_type","client_credential");
        String result = HttpUtil.get(TOKEN_URL, map);
        JSONObject jsonObject = JSONUtil.parseObj(result);
        // 判断接口响应是否出错
        if (ObjectUtil.isNotEmpty(jsonObject.getInt("errcode"))) {
            throw new RuntimeException(jsonObject.getStr("errmsg"));
        }

        String token = jsonObject.getStr("access_token");
        return token;

    }
}
